Atmospheric rivers are a plume of moisture that extend across the Pacific to near Hawaii. When they hit land they can cause ...

An expert at the Scripps Institution of Oceanography explains the weather phenomenon that can wreak havoc across California.

Here's the latest forecast for an upcoming winter storm that forecasters hope could finally lift Los Angeles County from the ...

Places like California, Oregon, Washington, Idaho, Utah and Nevada are (somewhat) used to this sort of phenomenon. You can ...